There are also a few adverbs which are also used as adjectives - but with a different adverbal form having a different meaning.
”It was a hard job” = ”The job required a lot of work/was difficult”. - adjective.
”She worked hard” = ”She worked a lot” - adverb.
Words used both as Adjectives and Adverbs
The following words may be used both as adjectives and adverbs. Some examples are given below; for more detailed information, check in a good dictionary.
Modern man leads a fast life. (Here the adjective fast modifies the noun life.)
Each of us has half ownership in the property. (Here the adjective half modifies the noun ownership.)
Don’t expect to get a straight answer from her. (Here the adjective straight modifies the noun answer.)
The train just left. (Adverb)
The meeting is scheduled for late evening. (Adjective)
We are low on supplies. (Adjective)
This is the most expensive gadget I have bought. (Adverb)
They moved clear across the country. (Adverb)
He is very clean in his habits. (Adjective)